Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ddcce9fc772acbd…

MALICIOUS

PDF

103.7 KB Created: 2021-03-21 03:36:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 9e982411b761cba0c1050ae3369d8d2b SHA-1: b2632c284c9a468544cacf187993a47a66bdd6e7 SHA-256: 6ddcce9fc772acbdaf96620d0e6de28f53ae5cc5210c6eef2b943d171d2bb3fd
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ponafet.ru/wix?keyword=gold+miner+hacked+online PDF link annotation
    • http://xinuvaro.sportsontheweb.net/49157631207.pdfIn PDF document text
    • http://xidufefonudug.sportsontheweb.net/konudoxared.pdfIn PDF document text
    • https://wufanamokedig.weebly.com/uploads/1/3/5/3/135326106/bokegiminogegexaz.pdfIn PDF document text
    • http://lumobumekola.getenjoyment.net/1966694437.pdfIn PDF document text
    • https://wanagewuzedu.weebly.com/uploads/1/3/1/3/131383352/banawuzotiti.pdfIn PDF document text
    • http://nusowutevu.getenjoyment.net/brother_mfc_7840w_toner.pdfIn PDF document text
    • http://nemosixumeki.mypressonline.com/xawadowidikojawewomut.pdfIn PDF document text
    • https://vanazufir.weebly.com/uploads/1/3/2/7/132740694/modas_lofakotoj_naxuxi.pdfIn PDF document text
    • https://saxibodusazo.weebly.com/uploads/1/3/0/7/130740440/b18e5db4.pdfIn PDF document text
    • https://tizidebiwefixim.weebly.com/uploads/1/3/0/7/130739379/1408967.pdfIn PDF document text
    • http://sevagawos.getenjoyment.net/boolean_algebra_and_logic_gates_notes.pdfIn PDF document text
    • http://kexumojazo.mypressonline.com/45002226380.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/pilazi/treatment_h_pylori_guidelines.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/34c3631e-cb70-448e-898f-318ab8c9deae/18698941635.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5b3a60a8-a1ef-47ac-b137-f6d31c13c0fd/14544845299.pdfIn PDF document text
    • http://letutemoxeluz.onlinewebshop.net/taxixuwuzisi.pdfIn PDF document text
    • http://bemabam.myartsonline.com/32021633593.pdfIn PDF document text
    • https://s3.amazonaws.com/savifin/33572866588.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2964482e-9abc-4fbb-a15b-acda718347b5/82242698309.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4047946d-6225-434e-befc-6b310f814d06/niniduwibima.pdfIn PDF document text
    • https://s3.amazonaws.com/xopugup/the_secret_movie_watch_online_youtube.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d729191f-518f-459b-ab78-0d3528cd9c6a/ansys_ls-dyna_users_guide.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00015710.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15710 5096 bytes
SHA-256: 08605e42a8edd0228c9149c5d103e39351e6a77b963431e561e16756024b582d
font_01_sfnt_off00016837.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16837 12212 bytes
SHA-256: a96f327bc6c75e233c9cdc0272b1263c9ae0d9255428fc90b0c5ced5ed170dfb

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